1. A Stable Hexaazaoctacene Cruciform σ‐Dimer.
- Author
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Maier, Steffen, Jester, Fabian, Hoffmann, Marvin T., Rominger, Frank, Freudenberg, Jan, Dreuw, Andreas, and Bunz, Uwe H. F.
- Subjects
ACENES ,OXIDATION - Abstract
Buchwald‐Hartwig coupling of a triisopropylsilyl (TIPS)‐ethynylated dibromo‐N,N'‐dihydrotetraazapentacene with 1,4‐bis(TIPS‐ethynyl)‐2,3‐diaminonaphthalene furnishes a dihydrohexaazaoctacene. Its oxidation with MnO2 results in a 7,7'‐bi(hexaazaoctacenyl). In addition to eight TIPS‐ethynyl groups, the bioctacene motif protects the azaoctacene subunits. The biazaoctacenyl displays a τ1/2 of > 5 d in dilute solution under ambient conditions. In the crystalline state it is persistent for > 10 months. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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